Respirator Closing Device Segmentation for Mobile Sealing
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Solution Overview
Problem
Existing respirators with complex closing devices are not optimally suited for mobile use and are expensive to manufacture, with complicated mechanical designs that hinder easy opening and sealing functionality.
Innovation Solution
A respirator design featuring two container shells joined at front surfaces with a closing device using a tightening strap, U-shaped closing element, and holding elements with recesses, allowing for easy opening by pulling the legs out of the recesses, and a cost-effective manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex closing device with star-shaped tightening straps and lever mechanisms is used, then reliable sealing is achieved, but device complexity and manufacturing cost increase significantly
Solution Approach 1:
The closing device is divided into separate functional components: a tightening strap for applying pressure, a closing element with legs for engagement, and holding elements with recesses for positioning. This segmentation allows each component to perform its specific function independently, simplifying the overall design while maintaining sealing reliability.
Solution Approach 2:
The patent extracts the essential sealing function from the complex lever mechanism and implements it through a simplified tightening strap system with a closing element that has legs engaging with holding elements. This extraction removes unnecessary mechanical complexity while preserving the core sealing capability.
2Reliability
If a lever-based snap closure system is used, then sealing function is satisfactory, but manufacturing cost and device complexity increase
Solution Approach 1:
The closing element and holding elements are designed as simple, inexpensive components that can be easily manufactured. The closing element with its legs and the holding elements with recesses represent a much simpler, more cost-effective alternative to expensive lever mechanisms with snap closures.
3Reliability
If a closing device designed for wall-mounted containers is used, then secure closure is achieved, but ease of opening and mobile suitability are reduced
Solution Approach 1:
The closing device transitions from a static wall-mounted design to a dynamic system where the closing element can be easily manipulated. The legs of the closing element can be pulled out of the recesses of the holding elements, enabling easy opening and closing operations suitable for mobile use while maintaining secure closure when engaged.
Data Source
AI summary
A closing device is provided for a container of a respirator with two container shells (2, 2′) joining each other at front surfaces, with at least one tightening strap (4), which encloses a part of a container shell outer surface located at right angles to the front surfaces. Two holding elements (5, 5′) are each provided with a recess (6, 6′) and are formed at the free ends of the tightening strap (4). A closing element (7) is formed in a U-shaped pattern with two legs (8) and meshes with each recess (6, 6′) of the holding elements (5, 5′). The legs (8) of the closing element (7) can be pulled out of the recess (6, 6′) of the holding elements (5, 5′) to take off the tightening strap (4).